`currentColor` is not converted when importing SVG

[cyberalien]

To Reproduce

Steps to reproduce the behavior:

1. Import this SVG:

<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" preserveAspectRatio="xMidYMid meet" viewBox="0 0 24 24"><path fill="currentColor" d="m9 20l-1.4-1.4l1.75-1.8q-3.2-.425-5.275-1.75T2 12q0-2.075 2.888-3.538Q7.775 7 12 7t7.113 1.462Q22 9.925 22 12q0 1.55-1.663 2.775Q18.675 16 16 16.6v-2.05q1.925-.5 2.962-1.238Q20 12.575 20 12q0-.8-2.137-1.9Q15.725 9 12 9q-3.725 0-5.862 1.1Q4 11.2 4 12q0 .6 1.275 1.438Q6.55 14.275 8.9 14.7l-1.3-1.3L9 12l4 4Z"/></svg>

2. Select imported path

Expected behavior

Expected to to see a shape with fill.

Actual behavior

• Fill is missing
• In Imported SVG Attributes section fill is set to currentColor.

Screenshots

Desktop (please complete the following information):

• OS (e.g. iOS): macOS 12.5.1
• Browser & version (e.g. Chrome 89.0): Chrome 105.0

Environment (please complete the following information):

• Host (e.g. https://design.penpot.app, local instance): https://design.penpot.app

Additional context:

All editors replace currentColor with black color, so I was expecting penpot to behave like that too.

[myfunnyandy]

We've added the bug to our issue tracker: https://tree.taiga.io/project/penpot/issue/4130

We hope to fix it soon, thanks for such a detailed report.